Bird perch



FIG. 1 is an perspective view of a bird perch showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof, the right side elevational view being a mirror image thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken line showing of a pair of cups, fasteners, a cylindrical base, a sink and a bird is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a bird perch, as shown and described. 